<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<!--    通过下面这句sumit从前端提交一个POST请求到这个地址，然后看后端能不能接收，接收就进入这个网站好啦-->
<form action="http://localhost:8080/hello?user=han&password=111" method="POST">
  用户名: <input type="text" name="username"><br>
  密码: <input type="password" name="password"><br>
  <input type="submit" />
  <br>
</form>
</body>
</html>